Home / 9,128.60-13,694.94-2,888.97

Finding the Fourth Proportional to 9,128.60, 13,694.94 and 2,888.97

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Solution

The fourth proportional to 9,128.60, 13,694.94 and 2,888.97 is: 4,334.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.60 : 13,694.94 = 2,888.97 : x
  2. Step 2: Convert to fraction form
    9,128.60/13,694.94 = 2,888.97/x
  3. Step 3: Cross multiply
    9,128.60x = 13,694.94 × 2,888.97
  4. Step 4: Simplify right side
    9,128.60x = 39,564,219.46
  5. Step 5: Solve for x
    x = 39,564,219.46/9,128.60
  6. Step 6: Final answer
    x = 4,334.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.